. >> reporter: it shows how science and art can mix. the exploratorium hopes people will mix, too. >> and you. thank you. yeah. i will. thank you. >> it's an invitation for people to play in space and actually be afforded the opportunity to not act in a normal way. >> reporter: not that you need anything special on market street for that to happen. you got to love san francisco. >> i actually do love san francisco. >> reporter: more exhibits are due in the next few weeks. we're all ears. mike sugerman, kpix 5. >> the only place on the street where you can whisper and be heard. it's so loud. >> i did hear right, $80,000? >> right. >> we'll see more of them. we'll be right back. ,, the great american novel. so you can happily let life get in the way, while planning for tomorrow. so you can finish the great american novel banking for the life you have investing for the life you want chase. so you can female announcer: female announcer: when you see this truck, it means another neighbor is going to sleep better tonight because they went to